Thought I'd share with you how I build PHP for OS X and Abyss using 'Homebrew.' This works for NGINX, so I thought it should work for Abyss. It seems to :)
My setup. OS X server 10.7.5. You will need to install Xcode and the command line utilities for xcode. All commands are executed via the terminal.
Step 1. Install Homebrew.

Step 4. PHP will be built in /usr/local/Cellar/php54 and the php-cgi is located at /usr/local/Cellar/php54/5.4.7/bin/php-cgi You need to make Abyss aware of this by changing the path in the PHP scripting parameters in the Abyss console. Restart Abyss.
Step 5. php.ini is located at /usr/local/etc/php.ini You will need to edit this to your requirements. Current build PHP5.4.7
Hope this helps ease some pain

As a side note, the main issue we face when building PHP Mac OS X binaries is that each Mac OS X major version ships with a different set of libraries. So the only choice we have is to include libraries PHP depends on with the final package. So the build process is rather complex and needs a lot of tests (hence the speed at which we release prepackaged PHP for Mac OS X.)_________________Support Team
Aprelium - http://www.aprelium.com

As a side note, the main issue we face when building PHP Mac OS X binaries is that each Mac OS X major version ships with a different set of libraries. So the only choice we have is to include libraries PHP depends on with the final package. So the build process is rather complex and needs a lot of tests (hence the speed at which we release prepackaged PHP for Mac OS X.)

I definitely have to agree with you. Mac OS is the hardest to integrate. Anyway, thanks sonofcolin for this. I will try it. :)